A riveting story of World War II and the courage of one young woman as she is drafted into Churchill's overseas spy network, aiding the French Resistance behind enemy lines and working to liberate Nazi-occupied Paris. London, 1941: In a cramped bunker in Winston Churchill's Cabinet War Rooms, underneath Westminster's Treasury building, civilian women huddle at desks, typing up confidential documents and reports. Since her parents were killed in a bombing raid, Rose Teasdale has spent more hours than usual in Room 60, working double shifts, growing accustomed to the burnt scent of the Prime Minister's cigars permeating the stale air. Winning the war is the only thing that matters, and she will gladly do her part. And when Rose's fluency in French comes to the attention of Churchill himself, it brings a rare yet dangerous opportunity. Rose is recruited for the Special Operations Executive, a secret British organization that conducts espionage in Nazi-occupied Europe. After weeks of grueling training, Rose parachutes into France with a new codename: Dragonfly. Posing as a cosmetics saleswoman in Paris, she ferries messages to and from the Resistance, knowing that the slightest misstep means capture or death.